Gas arc-lamp.



-No. 69l,00|. Patented Jan. 14, I902. J. K.-RUSSELL &. W. F. CLAUSEN.

GAS ABC LAMP. (Application filed June 28, 1901.)

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' (No Model.)

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.L'K. BUS-SELL & W. F. CLAUSEN.

GAS ARC LAMP. (Application filed June 28,. 1901.) (No Model.) 2 Sheets-Sheet 2.

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JOHN K. RUSSELL AND WILLIAM F. CLAUSEN, OF SHEBOYGAN, WISCONSIN.

GAS ARC LAli/l P.

SPECIFICATION forming part of Letters Patent No. 691,001, dated January 14, 1902. Application filed June 28, 1901. Serial No. 66,3 73. (No model.)

To ctZZ whom it may concern.-

Be it known that we, JOHN K. RUSSELL and WILLIAM F. OLAUSEN, citizens of the United States, residing at Sheboygan, in the county of Sheboygan and State of Wisconsin, have invented certain new and useful Improvements in Gas Arc-Lamps; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same.

Our invention has relation to a gas arc-lantern of that class wherein the gas-lamps are arranged in a group or cluster and partially inolosed by a globe similar to an are electric light, and in such connection it relates particularly to the general construction and arrangement of such lamp.

The principal objects of our invention are, first, to providea central independent draftfiue for each burner of the group, to provide means upon each flue forsupporting the mantle, and to improve the ventilator.

The nature of our invention will be best un derstood when described in connection with the accompanying drawings, in which- Figure 1 is a vertical section through the lamp. Fig.2 is aplan View of the disk for keeping the fines in position; Fig. 3, an enlarged view of ventilator; Fig. 4., a plan View of ventilator under canopy; Fig. 5, a plan view of wind-screen; Fig. 6, a side elevation of one of the fines, showing the method of support ing the mantle; Fig. 7, a perspective view of the same, and Fig. 8 a sectional view through the pilot-burner.

Similar letters of reference indicate the same parts throughout the several views in the drawings.

A is a group of gasIamps, which may be of the l/Velsbach type. These lamps are attached to the main tube B by the branch tubes a. Above each of these lamps is a draft-tube O, the group being held in position by the disks 1) and E in the case F, to which they are attached. These disks are attached to one main tube B, which supports them and the case, and they prevent any air or current from passing through the case, thereby keeping the draft-tubes hot when the burners are in operation, which produces a heavier draft through said tubes. The casing below the disk D terminates in a hood G for the globe H, against which it rests. The globe is supported upon the screw globe-holder l, which is adjustably fastened by the thumb-screw i to the lower part of the tube B, which termimates in a head I), upon which the holder and globe rests when lowered. The holder and globe can be removed from the lights by unscrewing the head I). The gas -cock K is opened and closed by the cords or chains 0, passing up through the air-screen M in the holder.

L L are the mantles, which are supported by a rod cl, which rests in the curved slots 6 in the bottom of the draft-tubes. These slots permit the ready adjustment of the mantles after being placed on the rods.

Above the cock 7c and attached to the tube B is a pilot-burner g, which is always ignited, so that the burners may be lighted at pleasure when the gas is turned on. This burner consists of a hollow disk, which is slit horizontally for nearly its whole circumference or to the nipple h, by which it is attached to the tube B. A screw Z passes through the upper part of the divided disk or burner and abuts againstthe lower part. By this means the slit or opening may be adjusted.

To the top of the case is attached a ventilator N, which consists of a cylinder 0, which A is secured to the case by a conical disk P, which is provided with openings Ron its edge, which is secured to the cylinder 0. Over and above this ventilator is placed a canopy S. By the arrangement of the draft-fines, which are about twenty inches long, and causing all the draft to pass through them, an increased draft is the result, which makes the mantle give a brighter light.

Having fully described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a gas arc-lamp, the combination of a cluster of lamps with a draft-flue for each lamp, a casing, disks within the casing for supporting the drafttubes, mantles below said draft-tubes, and means for attaching said mantles to said draft-tubes, substantially as described.

2. In a gas arc-lamp the combination of a cluster of lamps, with a draft-tube for each lamp, a casing, disks within the casing for supporting the draft-tube and preventing the circulation of air outside of the same, mantles supported by the ends of the draft-tubes and means for supporting the casing and lamps.

3. In a gas arc-lamp the combination of a cluster of lamps with a draft-flue for each lamp, a casing, disks Within the casing for supporting the draft-tubes and preventing the circulation of air outside of the same, slots in the ends of the draft-tubes, rods supported in the slots, mantles supported on the rods and means for supporting the casing and the lamps.

4. In a gas arc-lamp the combination of a lamp with a draft-flue, a casing, disks within the casing, for supporting the flue, curved slots near the end and on each side of the flue,

a rod supported in the slots and mantle carried by the rod.

5. In a gas arc-lamp, the combination of a cluster of lamps with a draft-fine for each lamp, a casing, disks within the casing for sup porting the draft-fines and preventing the circulation of air outside of the same, a hood .formed on said casing, a globe resting against- JOHN K. RUSSELL. WILLIAM F. OLAUSEN.

Witnesses:

A. SoHLIoHT, EDWARD KozIoK. 

